Powering of an implantable medical therapy delivery device using far field radiative powering at multiple frequencies
First Claim
1. An implantable medical device comprising:
- at least one antenna, the at least one antenna configured to receive a first far field radiative signal in a first frequency band and to receive a second far field radiative signal in a second frequency band;
a voltage rectifier configured to rectify the received first far field radiative signal and the received second far field radiative signal to provide a rectified voltage signal;
a charge storage element operative to receive the rectified voltage signal and to store charge responsive to the rectified voltage signal;
a therapy delivery unit powered by the charge storage element, the therapy delivery unit operative to deliver a therapy to a patient; and
a threshold detector coupled to the charge storage element, wherein the threshold detector is configured to;
detect whether a charge stored at the charge storage element satisfies a threshold; and
in response to detecting that the charge stored at the charge storage element satisfies the threshold, send a signal to the therapy delivery unit to cause the therapy delivery unit to generate an electrical stimulation signal to deliver the therapy to the patient.
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Accused Products
Abstract
A particular implantable device may include one or more antennas configured to receive a first far field radiative signal and a second far field radiative signal. The one or more antennas may be configured to receive the first far field radiative signal in a first frequency band and to receive the second far field radiative signal in a second frequency band. The implantable device may include a voltage rectifier configured to rectify the received first far field radiative signal and the received second far field radiative signal to provide a rectified voltage signal. The implantable device may further include a charge storage element operative to receive the rectified voltage signal and to store charge responsive to the rectified voltage signal. The implantable device may also include a therapy delivery unit powered by the charge storage element. The therapy delivery unit may be operative to deliver a therapy to a patient.
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Citations
27 Claims
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1. An implantable medical device comprising:
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at least one antenna, the at least one antenna configured to receive a first far field radiative signal in a first frequency band and to receive a second far field radiative signal in a second frequency band; a voltage rectifier configured to rectify the received first far field radiative signal and the received second far field radiative signal to provide a rectified voltage signal; a charge storage element operative to receive the rectified voltage signal and to store charge responsive to the rectified voltage signal; a therapy delivery unit powered by the charge storage element, the therapy delivery unit operative to deliver a therapy to a patient; and a threshold detector coupled to the charge storage element, wherein the threshold detector is configured to; detect whether a charge stored at the charge storage element satisfies a threshold; and in response to detecting that the charge stored at the charge storage element satisfies the threshold, send a signal to the therapy delivery unit to cause the therapy delivery unit to generate an electrical stimulation signal to deliver the therapy to the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system comprising:
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a first external transmitter configured to transmit a first far field radiative signal; a second external transmitter configured to transmit a second far field radiative signal; and an implantable medical device comprising; at least one antenna, the at least one antenna configured to receive a first far field radiative signal in a first frequency band and to receive a second far field radiative signal in a second frequency band; a voltage rectifier configured to rectify the received first far field radiative signal and the received second far field radiative signal to provide a rectified voltage signal; a charge storage element operative to store a charge responsive to the rectified voltage signal; a therapy delivery unit powered by the charge storage element, the therapy delivery unit operative to deliver a therapy to a patient; and a threshold detector coupled to the charge storage element, wherein the threshold detector is configured to; detect whether a charge stored at the charge storage element satisfies a threshold; and in response to detecting that the charge stored at the charge storage element satisfies the threshold, send a signal to the therapy delivery unit to cause the therapy delivery unit to generate an electrical stimulation signal to deliver the therapy to the patient. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification